/*
Error: Undefined mixin 'border-radius'.
        on line 14 of D:/web_work/MyfirstProject/sass/main_left.scss, in `border-radius'
        from line 14 of D:/web_work/MyfirstProject/sass/main_left.scss

9: 	margin-left:60px;
10: 	border:10px solid #f09f11;
11: 	width: 140px;
12: 	height: 140px;
13: 	background:#f3a722;
14: 	@include border-radius(50%);
15: 	@include animation(move 9s infinite);
16: 	&:hover{
17: 		@include transform(scaleX(1.4) scaleY(1.4));
18: 		background:#fff;
19: 		border:13px solid #f09f11;

Backtrace:
D:/web_work/MyfirstProject/sass/main_left.scss:14:in `border-radius'
D:/web_work/MyfirstProject/sass/main_left.scss:14
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:348:in `block in visit_mixin'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:346:in `visit_mixin'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:430:in `block (2 levels) in visit_rule'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:430:in `map'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:430:in `block in visit_rule'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:428:in `visit_rule'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/stack.rb:79:in `with_base'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:158:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:52:in `map'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:52:in `visit_children'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:36:in `block in visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:157:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/visitors/perform.rb:8:in `visit'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/root_node.rb:36:in `css_tree'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/tree/root_node.rb:20:in `render'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/engine.rb:268:in `render'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.5/lib/compass/import-once/engine.rb:17:in `block in render'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.5/lib/compass/import-once/engine.rb:29:in `with_import_scope'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.5/lib/compass/import-once/engine.rb:16:in `render'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:492:in `update_stylesheet'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:209:in `each'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:470:in `on_file_changed'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/lib/sass/plugin/compiler.rb:328:in `block in watch'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/listener.rb:252:in `call'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/listener.rb:252:in `on_change'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/listener.rb:290:in `block in initialize_adapter'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/adapters/polling.rb:48:in `call'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/adapters/polling.rb:48:in `poll_changed_directories'
C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/sass-3.4.11/vendor/listen/lib/listen/adapter.rb:299:in `block in start_poller'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Undefined mixin 'border-radius'.\A         on line 14 of D:/web_work/MyfirstProject/sass/main_left.scss, in `border-radius'\A         from line 14 of D:/web_work/MyfirstProject/sass/main_left.scss\A \A 9: 	margin-left:60px;\A 10: 	border:10px solid #f09f11;\A 11: 	width: 140px;\A 12: 	height: 140px;\A 13: 	background:#f3a722;\A 14: 	@include border-radius(50%);\A 15: 	@include animation(move 9s infinite);\A 16: 	&:hover{\A 17: 		@include transform(scaleX(1.4) scaleY(1.4));\A 18: 		background:#fff;\A 19: 		border:13px solid #f09f11;"; }
